871 Bouncing Ball -- Function Families Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 8–11 Professional Commentary: In this lesson, students explore quadratic functions using a motion detector known as a Calculator Based Ranger (CBR) to measure the heights of the different bounces of a ball. Students represent each bounce with a quadratic function of the form y = a (x - h)2 + k.... 872 Hot Dog Sales - Solving Linear Equations and Inequalities Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 5–8 Professional Commentary: Students solve a practical problem involving a linear function using three different methods: numerically from a data table, graphically, and algebraically. They find the number of hot dogs that must be sold to break even and then how many must be sold to make a specified profit. Connections between the three methods are a major focus of the... 873 Bigger and Smaller - Exponent Rules Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 6–8 Professional Commentary: This lesson has two parts. The first activity leads students to appreciate the effect of repeated doubling, using the classic checkerboard scenario.... 874 Be Direct - Oil Spills on Land Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 7–11 Professional Commentary: This lesson teaches students about direct variation by allowing them to explore a simulated oil spill using toilet paper tissues (to represent land) and drops of vegetable oil (to simulate a volume of oil). The lesson involves mathematics concepts ranging from area and volume to graphing, linear regression, and lines of best fit. Included with the lesson are... 875 Very Varied - Inverse Variation Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 8–11 Professional Commentary: Students learn about inverse variation by exploring the relationship between the heights of a fixed amount of water poured into cylindrical containers with different bases. The lesson begins with a review of direct variation and contrasts the properties of direct variation with those of inverse variation. A supporting article on oil spills, as well as suggestions for assessment,... 876 Mathematical Modeling, Circular Movement, and Transmission Ratios Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 7–9 Professional Commentary: In this lesson, students learn to use mathematical models to represent real-life situations. In particular, they use tables and equations to represent the relationship between the number of revolutions made by a "driver" pulley and a "follower" (two connected gears in a system), and they explain the significance of the radii of the gears in regard... 877 Skeeter Populations and Exponential Growth Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 8–12 Professional Commentary: In this lesson, students model the growth of five different populations using chips and the rules that describe how each population increases. From their data, students develop the algebraic expression that describes each mode of population growth.... 878 Joseph Had a Little Overcoat Resource Type: Instructional Resource -- Promising Practice Discipline: English Language Arts Ohio Standards Alignment: Grades 1–3 Professional Commentary: This teaching unit, specially designed for young students who are deaf or hard of hearing, is based on the book Joseph Had a Little Overcoat by Simms Taback. Several animated versions, including one featuring an American Sign Language storyteller, can be downloaded at the website. Each activity reviews key events from the story, builds vocabulary knowledge and examines important story elements. Abstract concepts, such as old, nothing, and something are also explored.... 879 “Fly Girls”: Women Aviators in World War II Resource Type: Instructional Resource -- Promising Practice Discipline: English Language Arts Ohio Standards Alignment: Grades 6–8 Professional Commentary: In this lesson, students explore the contributions of the Women Airforce Service Pilots (WASPs) during World War II. They examine portrayals of women in World War II in recruitment posters and compare and contrast them with personal recollections found in primary sources.... 880 Esperanza Rising: Learning Not to Be Afraid to Start Over Resource Type: Instructional Resource -- Promising Practice Discipline: English Language Arts Ohio Standards Alignment: Grades 6–8 Professional Commentary: In this series of lessons, students read and examine Pam Muñoz Ryan's young adult novel, Esperanza Rising. Through activities and online resources, students explore the historical, social, and cultural circumstances that help to account for the contrasts that Esperanza discovers when she goes from a life of privilege in Mexico to one as a migrant farm worker in... |